6 U.S. lawmakers have disclosed 51 The Mosaic Company trades under the STOCK Act — 25 buys and 26 sells between 2015 and 2026. Congress has been net sellers of MOS, and their disclosed buys are down 12.9% versus the latest close.
*Notional-weighted price return on lawmakers' disclosed buys of MOS, marked to the latest close — per-share (share counts aren't disclosed).
| Date | Member | Type | Amount | Est. price | Latest close | Return |
|---|---|---|---|---|---|---|
| 2026-03-27 | Alan Armstrong | BUY | $1K–$15K | $25.00 | $21.78 2026-08-13 | -12.9% |
| 2024-03-28 | Thomas R Carper | SELL | $1K–$15K | $32.46 | $21.78 2026-08-13 | -33.6% rt |
| 2023-12-11 | Thomas R Carper | SELL | $1K–$15K | $35.89 | $21.78 2026-08-13 | -17.7% rt |
| 2023-02-21 | Thomas R Carper | BUY | $1K–$15K | $48.86 | $21.78 2026-08-13 | -55.4% |
| 2022-07-29 | Virginia Foxx | BUY | $1K–$15K | $52.66 | $21.78 2026-08-13 | -58.6% |
| 2022-07-28 | Virginia Foxx | BUY | $1K–$15K | $50.80 | $21.78 2026-08-13 | -57.1% |
| 2022-01-18 | Thomas R Carper | BUY | $1K–$15K | $43.61 | $21.78 2026-08-13 | -50.1% |
| 2020-04-03 | Katherine M. Clark | BUY | $1K–$15K | $9.94 | $21.78 2026-08-13 | +119.1% |
| 2019-10-11 | David A Perdue , Jr | SELL | $15K–$50K | $20.72 | $21.78 2026-08-13 | -23.7% rt |
| 2019-07-09 | Katherine M. Clark | BUY | $1K–$15K | $23.33 | $21.78 2026-08-13 | -6.6% |
| 2019-04-03 | David A Perdue , Jr | BUY | $1K–$15K | $27.36 | $21.78 2026-08-13 | -20.4% |
| 2019-03-28 | David A Perdue , Jr | BUY | $1K–$15K | $27.17 | $21.78 2026-08-13 | -19.8% |
| 2019-02-19 | David A Perdue , Jr | SELL | $15K–$50K | $32.28 | $21.78 2026-08-13 | +32.5% exit |
| 2018-12-13 | David A Perdue , Jr | SELL | $1K–$15K | $30.91 | $21.78 2026-08-13 | +29.5% exit |
| 2018-11-20 | David A Perdue , Jr | SELL | $1K–$15K | $34.70 | $21.78 2026-08-13 | +37.2% exit |
| 2018-11-14 | David A Perdue , Jr | SELL | $1K–$15K | $35.72 | $21.78 2026-08-13 | +39.0% exit |
| 2018-11-13 | David A Perdue , Jr | SELL | $1K–$15K | $36.13 | $21.78 2026-08-13 | +39.7% exit |
| 2018-11-05 | David A Perdue , Jr | SELL | $1K–$15K | $32.22 | $21.78 2026-08-13 | +32.4% exit |
| 2018-10-25 | David A Perdue , Jr | SELL | $1K–$15K | $30.00 | $21.78 2026-08-13 | +27.4% exit |
| 2018-10-10 | David A Perdue , Jr | SELL | $1K–$15K | $32.31 | $21.78 2026-08-13 | +25.8% rt |
| 2018-10-09 | David A Perdue , Jr | SELL | $1K–$15K | $33.10 | $21.78 2026-08-13 | +33.4% rt |
| 2018-08-17 | David A Perdue , Jr | SELL | $1K–$15K | $29.63 | $21.78 2026-08-13 | +24.6% rt |
| 2018-08-15 | David A Perdue , Jr | SELL | $1K–$15K | $29.65 | $21.78 2026-08-13 | +18.8% rt |
| 2018-08-14 | David A Perdue , Jr | SELL | $1K–$15K | $30.64 | $21.78 2026-08-13 | +8.8% rt |
| 2018-08-13 | David A Perdue , Jr | SELL | $1K–$15K | $30.34 | $21.78 2026-08-13 | +5.8% rt |
| 2018-08-10 | David A Perdue , Jr | SELL | $1K–$15K | $31.49 | $21.78 2026-08-13 | +7.9% rt |
| 2018-08-08 | David A Perdue , Jr | SELL | $1K–$15K | $31.54 | $21.78 2026-08-13 | +25.6% rt |
| 2018-08-07 | David A Perdue , Jr | SELL | $1K–$15K | $31.70 | $21.78 2026-08-13 | +25.3% rt |
| 2018-08-06 | David A Perdue , Jr | SELL | $1K–$15K | $30.10 | $21.78 2026-08-13 | +19.0% rt |
| 2018-08-03 | David A Perdue , Jr | SELL | $1K–$15K | $30.45 | $21.78 2026-08-13 | +20.4% rt |
| 2018-08-01 | David A Perdue , Jr | SELL | $1K–$15K | $29.53 | $21.78 2026-08-13 | -35.7% rt |
| 2018-01-16 | David A Perdue , Jr | BUY | $100K–$250K | $25.68 | $21.78 2026-08-13 | -15.2% |
| 2017-12-13 | David A Perdue , Jr | SELL | $100K–$250K | $24.69 | $21.78 2026-08-13 | -46.3% rt |
| 2017-12-12 | David A Perdue , Jr | BUY | $1K–$15K | $24.82 | $21.78 2026-08-13 | -12.3% |
| 2017-07-03 | David A Perdue , Jr | BUY | $1K–$15K | $23.77 | $21.78 2026-08-13 | -8.4% |
| 2017-05-02 | David A Perdue , Jr | BUY | $1K–$15K | $24.95 | $21.78 2026-08-13 | -12.7% |
| 2017-04-12 | David A Perdue , Jr | BUY | $1K–$15K | $28.15 | $21.78 2026-08-13 | -22.6% |
| 2017-04-11 | David A Perdue , Jr | BUY | $1K–$15K | $28.69 | $21.78 2026-08-13 | -24.1% |
| 2017-03-10 | David A Perdue , Jr | BUY | $1K–$15K | $29.19 | $21.78 2026-08-13 | -25.4% |
| 2016-11-07 | David A Perdue , Jr | BUY | $100K–$250K | $25.11 | $21.78 2026-08-13 | -13.3% |
| 2016-10-05 | David A Perdue , Jr | SELL | $50K–$100K | $25.07 | $21.78 2026-08-13 | -45.4% rt |
| 2016-02-17 | David A Perdue , Jr | BUY | $1K–$15K | $25.30 | $21.78 2026-08-13 | -13.9% |
| 2016-02-17 | David A Perdue , Jr | BUY | $1K–$15K | $25.30 | $21.78 2026-08-13 | -13.9% |
| 2016-02-17 | David A Perdue , Jr | BUY | $1K–$15K | $25.30 | $21.78 2026-08-13 | -13.9% |
| 2015-08-21 | Virginia Foxx | SELL | $15K–$50K | $39.94 | $21.78 2026-08-13 | -12.2% rt |
| 2015-04-15 | David A Perdue , Jr | BUY | $1K–$15K | $45.95 | $21.78 2026-08-13 | -52.6% |
| 2015-04-15 | David A Perdue , Jr | BUY | $1K–$15K | $45.95 | $21.78 2026-08-13 | -52.6% |
| 2015-04-15 | David A Perdue , Jr | BUY | $1K–$15K | $45.95 | $21.78 2026-08-13 | -52.6% |
| 2015-04-01 | Virginia Foxx | BUY | $15K–$50K | $45.47 | $21.78 2026-08-13 | -52.1% |
| 2015-02-05 | Kenny Marchant | BUY | $1K–$15K | $49.79 | $21.78 2026-08-13 | -56.3% |
Return: buys marked to the latest close (open); sells tagged rt are realized round-trips vs a prior disclosed buy; exit = timing (stock move after the sale, seller's perspective).
6 members of the U.S. House and Senate have disclosed The Mosaic Company transactions under the STOCK Act — 25 purchases and 26 sales. The full member-by-member breakdown, with dates and dollar ranges, is in the table above.
No member of Congress has disclosed a MOS purchase in the last 90 days. STOCK Act filings lag the trade by up to 45 days, so newer buys may still be pending disclosure.
Notional-weighted, lawmakers' disclosed MOS buys are down 12.9% versus the latest close of $21.78. Each trade's own return — and realized round-trips on matched sells — is in the Return column.
Yes. Under the 2012 STOCK Act, members of Congress may buy and sell individual stocks but must publicly disclose each transaction within 45 days. Bargo surfaces those filings so you can see who traded MOS and how it performed.